When viewing the article, look for the Find it! button at the top of the page.

Find will attempt to locate the full text for you. If the article is not found, you will be offered the opportunity to request the item on Interlibrary loan (ILLiad). 

Find it! will attempt to locate an alternate full text for you. If no matching full text is found, you will see a button to request the item on ILLiad Interlibrary Loan.